[Personalization of Nordic walking programs in a sanatorium-type medical center]. / Personifikatsiya programm skandinavskoi khod'by v usloviyakh meditsinskogo tsentra sanatornogo tipa.

Nordic walking is a wellness technology available to people of all ages with varying fitness levels and health conditions. The greatest health strengthening effect when using it is achieved in those cases when the program is personified depending on a specific disease taking into account the current functional state of the body and system-forming parameters of activity including the initial vegetative tone. OBJECTIVE: To assess the effectiveness of Nordic walking in adolescent 15-17 years old depending on type of initial vegetative tone and the time of the lessons. MATERIAL AND METHODS: It was examined 60 adolescents aged 15-17 years of the II health group including 30 persons with vagotonic and 30 persons with sympathicotonic type of initial vegetative tone. In each groups the subgroups were identified who were engaged in Nordic walking from 8:00 to 9:00 (morning subgroups, 15 teenagers) and from 18:00 to 19:00 (evening subgroups, 15 teenagers). The course included 21 sessions of 45 minutes daily. Heart rate variability, the level of self-esteem according to D. Keirsey, well-being, activity and mood according to the SAN method, subjective load tolerance according to the Borg scale and general physical endurance according to the results of a test with a 6-minute run were assessed. RESULTS: A significant positive effect was observed with the differentiated use of Nordic walking taking into account the type of the initial vegetative tone and the daily rhythm of physical activity. In adolescent vagotonics training in the evening according to the analysis of heart rate variability, the functional reserve and activity of regulatory systems increased with a tendency to normalize the sympathetic-parasympathetic balance, the indicators of the psychological sphere improved, physical endurance increased, as well as the motivation for training and their subjective tolerance. In sympathicotonic adolescents, a similar positive effect of Nordic walking took place when exercising in the morning. A different distribution of training time (morning hours for vagotonics and evening hours for sympathicotonics) was accompanied by tension in the work of the autonomic nervous system apparatus caused disharmony in the emotional state, did not lead to an increase in physical endurance and worsened subjective load tolerance. CONCLUSION: When planning a course of Nordic walking in adolescents it is necessary to take into account the type of initial vegetative tone and choose the right time for classes: with vagotonia they should be carried out in the evening, with sympathicotonia - in the morning.

[The effectiveness of the spa and resort-based health-promoting treatment of the schoolchildren under conditions of the continuous academic process].

Two groups of schoolchildren were included in the present study; 59 of them were allocated to the experimental group while 66 others comprised the control group. All of them were examined to estimate psychological, psycho-physiological and physiological effects of the health-promoting treatment basedon a local health resort. Mean reaction time and mean root square deviation of this parameter determined with the use of the noise-immunity test improved significantly in both groups, but the number of 'late reaction' errors declined only in the experimental group. The analysis of the heart rate variability at rest demonstrated a significant increase of the total power spectrum as well as its very low-, low-, and high-frequency components in the supine position only in the experimental group but not in the control one. Moreover, the mean duration of cardiointervals also increased. The physical working capacity test showed a significantly enhanced working capacity in the treated children. The orthostatic test revealed an increase in the ratio of low-frequency/high-frequency components and a relative increase of the high-frequency component in the experimental group the amplitude of the transition process in the control group. The results of the study confirm the overall positive effects of the health promotion in schoolchildren presenting with heart rate variability treated at the local health resort on their psycho-physiological and physiological conditions, with the heart rate variability patterns being the most informative objective criteria of the physiological responsiveness.